Goldcorp's (GG +2.8%) 20% drop in adjusted Q2 earnings was in line with expectations; GG had...

Goldcorp's (GG+2.8%) 20% drop in adjusted Q2 earnings was in line with expectations; GG had already cut full-year production guidance so operating problems were no surprise to investors. GG is having trouble accessing a high-grade zone at Red Lake in Ontario and faces water shortages at Penasquito in Mexico; GG says the performance issues are its highest priority in H2.